SS8P4CHM3_A/I Equivalent & Substitute Parts

Part Overview

The SS8P4CHM3_A/I is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration with a maximum reverse voltage rating of 40 V and average rectified current of 4 A per diode. The device is housed in a Surface Mount TO-277, 3-PowerDFN package and is classified as an Active product with AEC-Q101 automotive qualification.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product family, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io) (per Diode)	4 A
Voltage - Forward (Vf) (Max) @ If	580 mV @ 4 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C
Package / Case	TO-277, 3-PowerDFN
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Grade	Automotive
Qualification	AEC-Q101

Substitute Part Grouping Explanation

Substitute parts for the SS8P4CHM3_A/I are identified based on strict equivalence of the following electrical and mechanical parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io) (per Diode): 4 A
Voltage - Forward (Vf) (Max) @ If: 580 mV @ 4 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction: -55°C ~ 150°C
Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Grade: Automotive
Qualification: AEC-Q101

The substitute parts SS8P4C-M3/86A and SS8P4C-M3/87A maintain all critical electrical specifications and package requirements, enabling direct substitution in applications requiring Schottky diode arrays with 40 V reverse voltage and 4 A rectified current ratings.

Parameter Comparison

Parameter	SS8P4CHM3_A/I	SS8P4C-M3/86A	SS8P4C-M3/87A
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V
Current - Average Rectified (Io) (per Diode)	4 A	4 A	4 A
Voltage - Forward (Vf) (Max) @ If	580 mV @ 4 A	580 mV @ 4 A	580 mV @ 4 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)	TO-277A (SMPC)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Series	eSMP®	eSMP®	eSMP®
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.10.0080	8541.10.0080	8541.10.0080

Engineering Selection Recommendations

All three parts—SS8P4CHM3_A/I, SS8P4C-M3/86A, and SS8P4C-M3/87A—are Active products manufactured by Vishay General Semiconductor - Diodes Division with identical electrical and mechanical specifications. Each part carries AEC-Q101 automotive qualification and ROHS3 compliance, confirming suitability for automotive and industrial applications.

The substitute parts SS8P4C-M3/86A and SS8P4C-M3/87A are direct functional equivalents of the SS8P4CHM3_A/I. Selection between these parts is based on availability and supply chain requirements rather than technical differentiation. All three parts maintain the same performance characteristics across voltage, current, temperature, and switching speed parameters.

Frequently Asked Questions (FAQ)

Q: Can SS8P4C-M3/86A or SS8P4C-M3/87A be used as direct replacements for SS8P4CHM3_A/I?

A: Yes. Both substitute parts maintain identical electrical ratings (40 V reverse voltage, 4 A rectified current, 580 mV forward voltage at 4 A), the same Schottky technology, identical package configuration (TO-277, 3-PowerDFN), and equivalent operating temperature range (-55°C to 150°C). Direct substitution is supported without circuit modification.

Q: Are there differences in reverse leakage current between these parts?

A: The SS8P4CHM3_A/I specifies reverse leakage current of 300 µA @ 30 V. Both substitute parts specify 300 µA @ 40 V. This difference in measurement voltage does not affect substitution compatibility, as the leakage current magnitude remains equivalent.

Q: Do all three parts meet automotive qualification requirements?

A: Yes. The SS8P4CHM3_A/I, SS8P4C-M3/86A, and SS8P4C-M3/87A all carry AEC-Q101 qualification and Automotive grade designation, confirming compliance with automotive industry standards.

Q: What is the significance of the TO-277, 3-PowerDFN package designation?

A: The TO-277, 3-PowerDFN package is a Surface Mount configuration with three pins in a power-optimized DFN (Dual Flat No-lead) footprint. All three parts use this identical package, ensuring mechanical and electrical compatibility on printed circuit boards without layout modification.

Q: Are there any moisture sensitivity or handling differences between these parts?

A: No. All three parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Do all parts comply with environmental and trade regulations?

A: Yes. All three parts are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080, confirming equivalent regulatory status.

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